4K 12G-SDI Fiber Converter with RS485 and Ethernet 20km

E-link 4K 12G-SDI Fiber Converter with RS485 and Ethernet LNK-12GSDI-1V2R1GE Series 12G-SDI Fiber Converter supports 1Ch 12G Video (audio embedded) &1Ch Gigabit Ethernet&2Ch Backward RS485 transmitted via fiber optical cable, and monitor the signal locally over a 12G loop output. Overview The LNK-12GSDI-1V2R1GE Series represents a high-performance 12G-SDI fiber converter engineered for professional broadcast and live production environments. This advanced fiber optic transmission system delivers exceptional signal integrity for 4K UHD content, supporting resolutions up to 3840×2160@60Hz while maintaining backward compatibility with 1080p, 1080i, and 720p formats.This comprehensive 12G-SDI fiber optic solution integrates multiple signal types through a single fiber connection. Each unit combines one channel of 12G-SDI video with embedded audio, one Gigabit Ethernet interface, and two channels of bi-directional RS485 data for complete device control. The built-in 12G-SDI loop output enables real-time local monitoring without interrupting the primary fiber link.The system operates as a matched pair of fiber optic transceivers, providing reliable long-distance transmission up to 20km over single-mode fiber. Designed for broadcast infrastructure, this professional video converter ensures uncompressed, low-latency transmission meeting stringent broadcast standards. Its robust construction and plug-and-play operation make it ideal for outside broadcasts, remote production setups, and fixed installation environments where signal quality and reliability are paramount. High-Capacity Audio Embedding Each 12G-SDI interface carries 8 channels of embedded digital audio, eliminating separate audio cabling while maintaining perfect synchronization. Professional Signal Integrity Management Automatic cable equalization compensates for signal degradation in long copper runs, ensuring broadcast-quality performance throughout the infrastructure. Application ▶ Outside Broadcast & Live Event ProductionDeployed in OB vans, sports venues, and concert broadcasts, the converter ensures low-latency transmission of 12G-SDI video with embedded audio. ▶ Broadcast Studio & Remote ProductionUsed in camera-to-control room links, the system delivers uncompressed 4K@60Hz video with automatic reclocking and cable equalization. Compatible with SMPTE 12G/6G/3G standards.▶ Large-Venue AV & Distance LearningIdeal for conference centers, lecture halls, and corporate AV networks.  The local loop-through output allows in-room monitoring without signal interruption.▶ Critical Infrastructure & Security MonitoringApplied in transportation hubs, industrial sites, and surveillance networks.  The dual RS485 data channels enable serial device management for PTZ security cameras or sensor systems. Why Choose Us Complete SDI Standards CompatibilitySupports full SMPTE protocol suite including ST-2082-1 (12G), ST-2081-1 (6G), ST-424 (3G), ST-292 (HD) and ST-259 (SD) for universal system integration.Multi-Rate Signal ProcessingIntegrated reclocker automatically locks to all SMPTE rates from 11.88Gbps down to 270Mbps, including divide-by-1.001 subrates for broadcast flexibility.Seamless Camera IntegrationDirect compatibility with 12G/6G/3G-SDI camera systems ensures plug-and-play operation without signal conversion or quality loss.Extended Fiber Transmission ReachSingle-mode fiber optic transmission capability extends to 80km, enabling long-distance connectivity for remote production and distributed facilities.Bi-Directional Control Data ChannelsTwo channels of backwards-compatible RS485 serial data support camera control, tally systems, and device management over fiber. Technical Indexes FormatsSupports ST-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD) And ST-259(SD)CompatibleCompatible With DVB-ASI and AES10 (MADI)Input1 x 12G-SDI on BNCOutput2 x FC optical fiber 1 x 12G-SDI loop-out on BNCSupported ResolutionHDTV 4K*2K, 1080P, 1080I, 720PResolution range3840*2160@60HzInput cable specification≤70m@12G SDI Belden 1694AOutput cable specification≤60m@12G SDI Belden 1694AEthernet10/100/1000MbpsData type 2Ch Backward RS485Optical transmission bandwidth270MHz～12GHzPower12 VDCPower Consumption6 W (Max.)Dimensions (LxWxH)117 x 80 x 24 (mm)Operating Temperature-10℃～70℃Storage Temperature-40℃～85℃ https://www.youtube.com/@E-linkChina